Add Chargify::Coupon.find_all_by_product_family_id

- Add coupon specs to cover some existing functionality

lib/chargify_api_ares.rb

@@ -298,6 +298,10 @@ class PaymentProfile < Base
   end
 
   class Coupon < Base
+    def self.find_all_by_product_family_id(product_family_id)
+      Coupon.find(:all, :params => { :product_family_id => product_family_id })
+    end
+
     def self.find_by_product_family_id_and_code(product_family_id, code)
        Coupon.new get(:lookup, :product_family_id => product_family_id, :code => code)
     end

spec/coupon_spec.rb

@@ -0,0 +1,35 @@
+require 'spec_helper'
+
+describe Chargify::Coupon do
+  context '.find_by_product_family_id_and_code' do
+    let(:existing_coupon) { Factory.build(:coupon, :code => '20OFF') }
+
+    before do
+      FakeWeb.register_uri(:get, "#{test_domain}/product_families/10/coupons/lookup.xml?code=#{existing_coupon.code}", :body => existing_coupon.attributes.to_xml)
+    end
+
+    it "finds the correct coupon by product family and code" do
+      Chargify::Coupon.find_by_product_family_id_and_code(10, '20OFF').should == existing_coupon
+    end
+
+    it "is an instance of Chargify::Coupon" do
+      coupon = Chargify::Coupon.find_by_product_family_id_and_code(10, '20OFF')
+      coupon.should be_instance_of(Chargify::Coupon)
+    end
+  end
+
+  context '.find_all_by_product_family_id' do
+    let(:coupon_1) { Factory.build(:coupon, :product_family_id => 5) }
+    let(:coupon_2) { Factory.build(:coupon, :product_family_id => 5) }
+
+    before do
+      FakeWeb.register_uri(:get, "#{test_domain}/product_families/5/coupons.xml", :body => [coupon_1.attributes, coupon_2.attributes].to_xml)
+    end
+
+    it "returns all of the coupons for a product family" do
+      coupons = Chargify::Coupon.find_all_by_product_family_id(5)
+      coupons.count.should == 2
+      coupons.map{|c| c.should be_instance_of(Chargify::Coupon)}
+    end
+  end
+end

spec/factories.rb

@@ -61,4 +61,14 @@
     f.unit_name 'unit'
     f.component_type 'quantity_based_component'
   end
+
+  factory :coupon, :class => Chargify::Coupon do |f|
+    f.name                   { '15% off' }
+    f.code                   { '15OFF' }
+    f.description            { '15% off for life' }
+    f.percentage             { '14' }
+    f.allow_negative_balance { false }
+    f.recurring              { false }
+    f.end_date               { 1.month.from_now }
+  end
 end